A remotely operable pressure regulator and shutoff valve particularly suited for achieving high resolution and flow control, and positive shutoff is described. The valve is characterized by a spring-loaded ball coaxially aligned with a fluid port to be sealed, a spring-loaded pintle extended through the port into engagement with the ball, for controlling the position, a spring-loaded diaphragm for controlling the position of the pintle, and an axially displaceable spring supported by a movable stop which, in turn, is repositioned by a selectively operable stepper motor. Thus, the pressure-response characteristics for the valve can be varied through a selective repositioning of the stop.


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    Title :

    Combined pressure regulator and shutoff valve


    Contributors:
    Koch, E. F. (author)

    Publication date :

    1974-12-24


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




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